3 years ago

Lexi has a cylindrical trash can with a diameter of 26cm and a height of 50 cm. What is the

Mathematics

1 answer:

egoroff_w [7]3 years ago

4 0

Answer:

HELPP

Step-by-step explanation:

LOl

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(x-1)^2+(2-x)^2-3(x-5)*(x-5)

Natali5045456 [20]

Answer:

$-x^2+24x-70$

Step-by-step explanation:

$(x-1)^2+(2-x)^2-3(x-5)*(x-5)\\=> (x - 1)^2 + (2 - x)^2 - 3(x - 5)^2\\=> x^2 - 2x + 1 + 4 - 4x + x^2 - 3(x - 5)^2\\=> x^2 - 2x + 5 - 4x + x^2 - 3(x - 5)^2\\=> x^2 - 6x + 5 + x^2 - 3(x - 5)^2\\=> 2x^2 - 6x+5 - 3(x - 5)^2\\=> 2x^2 - 6x+5 - 3(x^2 - 10x + 25)\\=> 2x^2 - 6x+5 - 3x^2+30x-75\\=> -x^2 - 6x + 5 + 30x - 75\\=> -x^2 + 24x + 5-75\\=> -x^2+24x-70$

Formula used =

$(a-b)^2 = a^2+ 2ab + b^2$

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3 years ago

Find the area of a regular septagon (7 sided regular polygon) with side length 10.

allochka39001 [22]

A≈363.39
Your area is ^^

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3 years ago

A paint can has a radius of 4 inches and a height of 15 inches. What is the volume of the paint can? Round to the nearest tenth.

Hunter-Best [27]

Answer:

753.6

Step-by-step explanation:

3.14x4²x15

$\pi$ r^2x15

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4 years ago

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Genrish500 [490]

Where’s the picture at

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A bag contains 10 marbles:

Len [333]

Total number of marble = 10
3green
2red
5 blue
Probability that the first marble is red = 2/10

Probability that the second is blue = 5/9(a reduction in the total number of marbles, because after the first marble was picked it wasn't replaced)

Probability of 1st and 2nd being red and blue respectively = 2/10 × 5/9
=1/9....

Hope this helped...?

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3 years ago